CHEM 1342 Exam 2 Comprehensive Review

What is the fraction for a CORNER atom?

• 1/8

• 1/4

• 1/2

• 1

What is the fraction for an EDGE atom

• 1/4

• 1/8

• 1/2

• 1

What is the fraction for a FACE atom?

• 1/8

• 1/4

• 1/2

• 1

What is the fraction for a BODY atom?

• 1/8

• 1/4

• 1/2

• 1

Element A has 8 atoms along the edge

Element B has 4 atoms on its face

What is the empirical formula of this compound?

• A2B2

• AB

• A4B2

• A2B

Electronegativity of a nonpolar (pure) covalent bond

• <0.5

• 0.5-2.0

• >2

• >1

Select the 2 true statements about Polar Covalent bonds.

• Electronegativity between 0.5-2

• consist of two different nonmetals

• consist of Carbon and Hydrogen

• Nonmetal + metal

Select the true statements about ionic bonds

• Electronegativity of >2

• Metal+nonmetal

• nonmetals

• Electronegativity of >1

What IMFs does CH2O have

• London Dispersion

• Dipole dipole

• Hydrogen bonding

An aqueous solution is 40% NH3 by mass and has a density of 0.5 g/mL. What is the molarity (M) of the solution?

• 392 M

• 300 M

• 5.33 M

• 263 M